Home / 15,251.58-21,049.38-8,789.96

Finding the Fourth Proportional to 15,251.58, 21,049.38 and 8,789.96

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Solution

The fourth proportional to 15,251.58, 21,049.38 and 8,789.96 is: 12,131.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,251.58 : 21,049.38 = 8,789.96 : x
  2. Step 2: Convert to fraction form
    15,251.58/21,049.38 = 8,789.96/x
  3. Step 3: Cross multiply
    15,251.58x = 21,049.38 × 8,789.96
  4. Step 4: Simplify right side
    15,251.58x = 185,023,208.22
  5. Step 5: Solve for x
    x = 185,023,208.22/15,251.58
  6. Step 6: Final answer
    x = 12,131.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.